68. Tina started _________last night, she must have a cold. (打喷嚏).

67. He went to Tsinghua ____________(大学)at the age of nineteen.

66. You must ________(检查)your answers after you finish them.

65. He always stays at home and read books. He hardly does any o_________ sports.

64. She w________ the first prize in the speech competition.

63. I bought a lot of s_____ for my presents after I came back from my trip

62. Don’t m_____ them all up. They are quite different.

61. The girl looked for her key all day, f______ she found her key in her handbag.

59.My cousin is going to leave at six tomorrow.(对划线部分提问)

________ ________ your cousin going to leave?

58. He started to learn the piano when he was five years old.(改为同义句)

He started to learn the piano at 　　　　　 　　　　　　　 　　　　　　　 　five.